Re: out of memory or dimension too large for Octave's index type

[Jiang, Yanda [E CPE]]

Hi Markus,

Is this a 32bit or 64bit version? It looks like a 64bit version, but why is its intmax only 2^31?

Best,

Yanda

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From: Markus Mützel <markus.muetzel@gmx.de>
Sent: Wednesday, October 26, 2022 2:14 PM
To: Jiang, Yanda [E CPE] <yandaj@iastate.edu>
Cc: help@octave.org <help@octave.org>
Subject: Re: out of memory or dimension too large for Octave's index type

 

Am 26. Oktober 2022 um 17:03 Uhr schrieb "Jiang, Yanda [E CPE]":
>
> H(:, noslack) = sparse(Bf(:, noref)) / sparse(Bbus(noslack, noref));
> 
> 
> still gave me the error message as following:
> 
> debug> H(:, noslack) = sparse(Bf(:, noref)) / sparse(Bbus(noslack, noref));
> error: out of memory or dimension too large for Octave's index type
> error: called from
>     makePTDF at line 76 column 15
> 
> 
> Does that mean the problem is not related to index type?
 
I don't know which exact problem you'd like to solve. But sometimes it helps to re-formulate the problem and use the backslash operator `\` instead of the slash operator `/`.
See also: `doc mldivide`

Markus